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- Title
Ligand Non‐innocence and Single Molecular Spintronic Properties of Ag<sup>II</sup> Dibenzocorrole Radical on Ag(111).
- Authors
Xu, Jialiang; Zhu, Li; Gao, Hu; Li, Chenhong; Zhu, Meng‐Jiao; Jia, Zhen‐Yu; Zhu, Xin‐Yang; Zhao, Yue; Li, Shao‐Chun; Wu, Fan; Shen, Zhen
- Abstract
A facile method for the quantitative preparation of silver dibenzo‐fused corrole Ag‐1 is described. In contrast to the saddle conformation resolved by single‐crystal X‐ray analysis for Ag‐1, it adopts an unprecedented domed geometry, with up and down orientations, when adsorbed on an Ag(111) surface. Sharp Kondo resonances near Fermi level, both at the corrole ligand and the silver center were observed by cryogenic STM, with relatively high Kondo temperature (172 K), providing evidence for a non‐innocent AgII‐corrole.2− species. Further investigation validates that benzene ring fusion and molecule‐substrate interactions play pivotal roles in enhancing Ag(4d(x2−y2))–corrole (π) orbital interactions, thereby stabilizing the open‐shell singlet AgII‐corrole.2− on Ag(111) surface. Moreover, this strategy used for constructing metal‐free benzene‐ring fused corrole ligand gives rise to inspiration of designing novel metal–corrole compound for multichannel molecular spintronics devices.
- Subjects
KONDO effect; ORBITAL interaction; FERMI level; SPINTRONICS; MOLECULES
- Publication
Angewandte Chemie, 2021, Vol 133, Issue 21, p11808
- ISSN
0044-8249
- Publication type
Article
- DOI
10.1002/ange.202016674